2646468252 has 18 divisors (see below), whose sum is σ = 6689683728. Its totient is φ = 882156072.

The previous prime is 2646468247. The next prime is 2646468259. The reversal of 2646468252 is 2528646462.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 2646468198 and 2646468207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646468259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36756468 + ... + 36756539.

It is an arithmetic number, because the mean of its divisors is an integer number (371649096).

Almost surely, 2^2646468252 is an apocalyptic number.

It is an amenable number.

2646468252 is an abundant number, since it is smaller than the sum of its proper divisors (4043215476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2646468252 is a wasteful number, since it uses less digits than its factorization.

2646468252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73513017 (or 73513012 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 2646468252 is about 51443.8358989685. The cubic root of 2646468252 is about 1383.2124718458.

The spelling of 2646468252 in words is "two billion, six hundred forty-six million, four hundred sixty-eight thousand, two hundred fifty-two".